UA 3459 then AC 8906 at O'Hare
Kansas City → Chicago → Toronto Pearson
Timetable, Chicago time
13:15UA 3459 from Kansas City at the gate
16:35AC 8906 to Toronto Pearson leaves the gate
3 h 20 apart on the timetable
The last days
UA 3459 and AC 8906 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.